<template>
	<div>
		<!-- 面包屑导航区 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
		  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
		  <el-breadcrumb-item>数据统计</el-breadcrumb-item>
		  <el-breadcrumb-item>数据报表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片区域 -->
		<el-card>
			 <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
			 <div id="main" style="width: 750px;height:400px;"></div>
		</el-card>
	</div>
</template>

<script>
	// 1.导入安装
	import * as echarts from 'echarts'
	import _ from 'lodash'
	export default{
		data(){
			return{
				// 需要合并的数据
				options: {
					title: {
						text: '用户来源' ,
					},
					tooltip: { 
						trigger: 'axis', 
						axisPointer: { 
							type: 'cross', 
							label: { 
								backgroundColor: '#E9EEF3'
				      } ,
				   } ,
				},grid: { 
					left: '3%', 
					right: '4%', 
					bottom: '3%', 
					containLabel: true ,
				  },xAxis: [ 
					  {
						  boundaryGap: false ,
					  } ,
				  ],yAxis: [
					  { 
						  type: 'value' ,
					  } ,
					] ,
				}
			}			
		},
		created(){
			
		},
		// 此时页面上的元素已经渲染完毕
		async mounted(){
			// 3.基于准备好的dom，初始化echarts实例
			var myChart = echarts.init(document.getElementById('main'));
			
			const {data:res}=await
			this.$http.get('reports/type/1')
			if(res.meta.status!==200){
				return this.$message.error('获取折线图数据失败！')
			}
			
			// 4.准备数据和配置项
			const result=_.merge(res.data,this.options)
			// 5.展示数据
			 myChart.setOption(result);
		},
		methods:{
			
		},
	}
</script>

<style>
</style>
